package main

import (
	"fmt"
)

func add(a, b int) int {
	return a + b
}

func sub(a, b int) int {
	return a - b
}

func mult(a, b int) int {
	return a * b
}

func div(a, b int) int {
	return a / b
}

func quyu(a, b int) int {
	return a % b
}

func main() {
	a := 10
	b := 20

	fmt.Println(add(a, b))
	fmt.Println(sub(a, b))
	fmt.Println(mult(a, b))
	fmt.Println(div(b, a))
	fmt.Println(quyu(b, a))
}
